Attachment for ophthalmic mountings



July 31, 192s. 1,679233 L. sTRAUss ATTACHHENT FOR OPHTHALMIC MOUNTINGS Filed Feb. 24, 192'? Patented Julyai, 1928.',

IUNITED STATES.

l,Pirrrnxz'r OFFICE'.

Application led February 24, 1927. Serial No. 170,589.

This invention relates to ophthalmic devices, and has especial reference to ophthalmic devices adapted to be'used yadvantageously in conjunction with other anal- 5 ogous devices such as spectacles and the like. The principal object of the present invention is the provision ofan improved attachment for primary ophthalmle devices, to provide detachable supplemental lenses l therefor, for the purposeof diffusing glaring rays of light, so that the vision will not be affected.

Another object of the vinvention is the provision of an ophthalmic device in the l form of goggles having an improved bridge 'between the lens frames.

Another object of the invention is to provide goggles with a novel connecting means.

between the lens frames thereof, so that the goggles when not in use may be folded, or in other words, to permit the lens frames to be brought together side by side, also to permit the lens frames to be juxtaposed with respect to each other in the same plane ready for use.

The nature of the invention and its distinguishing features and advantages Awill appear when the following specification. is read in connection with the accompanying drawing, in whichvligure 1 is a view illustrating the attachment of the present invention in place on primary eyeglasses, a portion of thel bridge member bein broken away.

Fig. 2 is a top e ge view of the attachment associated with the eyeglasses.

Fig. 3 is an elevation4 of, the attachment in a folded condition.

The present invention contemplates the provision of an attachment in the form of goggles capable of being detachably connected lwith a primary ophthalmic mounting, to provide a pair of supplemental colored lenses for the purpose of preventing glaring -rays of light from affecting the vision of persons who have to wear these ophthalmic mountings in order to correct impaired vision. Theinvention resides principally in the connecting means between a pair of fframes which carry the colored lenses or glasses. The connecting means may be employed in conjunction with lens frames particularly adapted for connection with the frames of other ophthalmic mountings or with ordinary lens frames,

Referring now more particularly to the connected with frames 14 in each of which is mounted a.

colored lensor glass 15, means 16 is connected between the top edges of the frames 14 permitting the frames 14 to be moved relatively vto each other, and means 17 for placing the frames under tension. The frames 14 will be similar in shape and construction, and may be of any shape, although they are circular in the present instance. Each frame may also be made of any preferred material such as metal or Celluloid. The means 16 hereinbefore mentioned consists of an extension 18 on each of the frames 14 and a bridge member 19. The bridge member 19 is U-shaped in cross section, to

provide spaced'portions 20 which are adapted to be flexed slightly, with respect to each other. The opposite ends of the bridge member 19 are respectively pivotally connected with the extensions 18, andV this is accomplished. by inserting the extensions 18 between the portions 20, and by employing pivots 21 which extend through the portions 20 and the extensions 18. This provision permits the lens frames 14 to be moved with respect to each other, either to be brought together to be disposed side by side, as shown in Fig. '3, or to be juxtaposed with respect to each other edge to edge in substantially the same plane, as shown in Figs. 1 and 2. The means 17 hereinbefore referred to is in the form of a contractile vspring whose vopposite ends respectively are connected with the extensions 18, as at 22, to one side of their points of pivotal connection with the bridge member 19. The sprin lens rames 14 toward each other to the side by side'relationship, and allows thesaid lens frames 14 to be moved to the edge to edge relationship, in which'the will be under the influence of the spring 17 tending to draw them together.

In order to` effect the detachable connection of the lens frames 14 with the frames 11 of the mounting 10, each of the frames 17 has a normal tendency to pull the hooks Q3 arranged in spaced relationship. The hooks may be incorporated in any preferred manner, they may be secured to the trames 14 or may be formed integral therewith as in the present instance. lVhen the trames 14 are in the edge to edge relationship, the hooks 523 may be engaged or hooked over the related frames 11 of the mounting 10, the spring 17 serving to tension the frames 1-1 and thus dctachably hold them in place.

From the foregoing it Will be evident that the attachment serves for providing supplemental colored lenses in conjunction with the transparent lenses ot the primary eyeglasses or ophthalmic mountinglO to constitute an anti-glare ophthalmic device; and that such device may be readily put into use, and when not in use may be folded to a small compass to be readily carried about.

It is to be understood that the invention is not restricted to the precise arrangement oi parts shoivn and described, as details of construction may be modified and rearranged ivithout departing from the spirit of the invention, the scope otl which is limitcd only by the terms of the appended claims.

I claim: 5

1. An ophthalmic device comprising a pair of lens frames, a bridge member, means connecting the bridge member with said lens frames so as to permit the frames to be moved With respect to each other to be juxtaposed side by side, or edge to edge in the saine plane, and means connected with the frames and having a normaLtendency to urge` the frames to the side by side relationship.

2. An ophthalmic device comprising a pair of lens frames, a rigid bridge member, means connecting the bridge member with said lens frames so as to permit the trames to be moved with respect to each other to be juxtaposed side' by side, or edge to edge 1-1 is provided with in the same plane, and means connected with the frames and having a normal tendency to urge the frames to the side by side relationshi 3l.) An ophthalmic device comprising a pair of lens frames, a bridge member, means connecting the bridge member with said lens frames so as to permit the frames to be moved with respect to each other to he juxtaposed side by side, or edge to edge in t-he same plane, and a contractile spring con nected with the frames and having a normal tendency to urge the frames to the side by side relationship. v

4. An ophthalmic attachment including a pair of lens trames, a bridge having the opposite ends respectively pivotally connected with said frames, and tension means having the opposite ends thereof respectively connected with said frames, said tension means acting on said frames to pnt the frames under tension when they are juxtalosed edge to edge in substantially the same p ane.

5. An ophthalmic attachment including a pair of lens frames, each of said trames having an extension, a bridge member having the opposite ends respectively pivotally connected with the extensions on said frames, and tension means having the opposite ends respectively. connected with said extensions between their points of pivotal 'connection and 'the frames.

6. An ophthalmic attachment comprising y a pair of lens frames, -a bridge member, means connecting the bridge member with said lenses frames so as to permit the frames to be moved with respect to each other to he juxtaposed side by side, or edge to edge in the same plane, means connected with the frames and having a normal tendency to urge the frames to the side by side relationship, and attaching means on each of said lens frames.

LEO STRAUSS. 

